One Letter Answer Quiz Multiple Choice Questions
1. Retinol is another name for which type of vitamin?
A. A
B. C
C. E
Answer: A. A
2. What is the most common blood type in the general population?
A. A
B. B
C. O
Answer: C. O
3. Which one letter refers to the type of electromagnetic radiation that doctors used to produce pictures of structures and tissues inside the body?
A. X
B. Y
C. Z
Answer: A. X
4. Which programming language was developed by Dennis Ritchie from 1972 to 1973?
A. B
B. C
C. R
Answer: B. C
5. Which letter represents the number 1000 in the Roman numerals?
A. L
B. M
C. D
Answer: B. M
6. Which letter is used by Samsung to name their high-end flagship models in the Galaxy range of devices?
A. I
B. S
C. E
Answer: B. S
7. Which letter represents the chemical element potassium in the periodic table?
A. P
B. N
C. K
Answer: C. K
8. According to the SI system, which letter is used to denote the unit of electrical current?
A. A
B. V
C. K
Answer: A. A
9. Which letter is the answer to the trick riddle. “It occurs once in a minute, twice in a moment, but never in a thousand years.”?
A. M
B. I
C. O
Answer: A. M
10. On a QWERTY keyboard, which letter is located between the letter A and D on the same line?
A. F
B. S
C. H
Answer: B. S
11. In the 1997 movie “Men in Black”, Will Smith plays a role as Agent …
A. K
B. J
C. L
Answer: B. J
12. In the game of Scrabble, what is the only letter to be worth 5 points?
A. X
B. G
C. K
Answer: C. K
13. No countries in the world have their names begin with two letters: X or …
A. W
B. Y
C. J
Answer: A. W
14. Which letter refers to the horizontal axis in a 2D coordinate graph?
A. X
B. Y
C. Z
Answer: A. X
15. Which letter refers to the demographic population who was born between 1997 and 2012?
A. X
B. Z
C. A
Answer: B. Z
16. Which letter is the most commonly used in English words?
A. I
B. O
C. E
Answer: C. E
17. The lowercase of which letter is used to denote a mathematical constant that is approximately equal to 2.71828?
A. U
B. I
C. E
Answer: C. E
18. Which letter is denoted by one dot followed by three dashes in the International Morse Code?
A. J
B. P
C. R
Answer: A. J
19. Which letter denotes a number that measures how quickly a virus is spreading in the population during a pandemic?
A. Q
B. R
C. L
Answer: B. R
20. Which clothing size is between S and L?
A. I
B. M
C. F
Answer: B. M
21. Which letter was created by an Italian grammarian called Gian Giorgio Trissino in 1524, making it the last letter to be added to the modern English alphabet?
A. W
B. J
C. Z
Answer: B. J
22. The chief of the Secret Intelligence Service, often known as MI6, typically signs letters with which letter?
A. I
B. S
C. C
Answer: C. C
23. Which vitamin can the body create from direct sunlight?
A. K
B. D
C. C
Answer: B. D
24. “Canine letter” or dog’s letter refers to which letter in the English alphabet as it imitates a snarling dog’s sound?
A. R
B. Z
C. I
Answer: A. R
25. Which letter plays a role as an indefinite article in English grammar?
A. A
B. E
C. I
Answer: A. A
26. Which letter means “loud” on a sheet of music?
A. P
B. F
C. L
Answer: B. F
27. The pound sign, which is the symbol for the currency of the United Kingdom, is derived from which letter?
A. P
B. L
C. S
Answer: B. L
28. What is the middle name of the former U.S. President Harry Truman?
A. F
B. S
C. K
Answer: B. S
29. In the United Kingdom, which movie rating is suitable for all audiences?
A. U
B. E
C. A
Answer: A. U
30. First produced in 2015, which Tesla car model is known for using falcon-wing doors for passenger access?
A. S
B. Y
C. X
Answer: C. X
31. Which type of nuclear bomb explodes from the intense energy caused by nuclear fusion?
A. A
B. B
C. H
Answer: C. H
32. The sound of sleeping can be described by using which letter three times in a row?
A. A
B. O
C. Z
Answer: C. Z
33. In Microsoft Windows operating systems, the primary hard disk is designated with which letter?
A. C
B. D
C. E
Answer: A. C
34. Which letter follows the word “Elizabeth” when the queen signs her name?
A. T
B. R
C. Q
Answer: B. R
35. Which letter denotes a trillion in the metric system?
A. M
B. G
C. T
Answer: C. T